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Publications (235)
Among the hematopoietic neoplasms, leukemias are caused by myeloid or lymphoid cells in the bone marrow, which can either be acute with an unfavorable prognosis and mostly affect cats that tested positive for feline viral leukemia (FeLV) or chronic in older cats that have a poor prognosis. Leukemias have several classifications in which the differe...
Agaricus blazei Murill (ABM) is commercialized worldwide as a medicinal food with anticancer potential. The study investigated the effects of different ABM extracts on a mouse model of transplatable Ehrlich tumor. Different extracts were produced using a solution with pH 4 and 7, water bath or ultrasonic bath, with polysaccharide solution or supern...
Resumo Agaricus blazei Murill (ABM) é comercializado mundialmente como alimento medicinal com potencial anticancerígeno. O estudo investigou os efeitos de diferentes extratos de ABM em um modelo de camundongo com tumor de Ehrlich (TE). Diferentes extratos foram produzidos utilizando solução com pH 4 e 7, banho-maria ou banho ultrassônico, com soluç...
Background
Loxoscelism refers to a set of clinical manifestations caused by the bite of spiders from the Loxosceles genus. The classic clinical symptoms are characterized by an intense inflammatory reaction at the bite site followed by local necrosis and can be classified as cutaneous loxoscelism. This cutaneous form presents difficult healing, and...
Anthropogenic activities are the main sources of soil, air, and water pollution by metals, including cadmium (Cd), lead (Pb), chromium (Cr), the metalloid arsenic (As), magnesium (Mg), zinc (Zn), and copper (Cu). The goal of this study was to assess the presence and concentration of toxic (As, Cd, Pb, and Cr) and essential metals (Mg, Zn, and Cu) i...
Background: Canine T-zone lymphoma is recognized as an indolent CD45- T cell lymphoma, with low aggressiveness and high overall survival. The diagnosis is obtained by histopathology and immunohistochemistry, but also by cytological examination of the lymph node associated with immunophenotyping. Lymphocytosis is commonly identified as around 10,000...
Background
Cholinesterase is a biomarker for poisonings by anticholinesterase agents, but its reference values are scarce, and possible interaction with collars containing parasiticides has not been studied.
Objectives
We aimed to evaluate the serum cholinesterase activity of healthy dogs without a history of contact with anticholinesterase agents...
Dogs with visceral leishmaniasis play a key role in the transmission cycle of Leishmania infantum to humans in the urban environment. There is a consensus regarding the importance of developing a vaccine to control this disease. Despite many efforts to develop a protective vaccine against CVL, the ones currently available, Leish-tec® and LetiFend®,...
Abstract Doxorubicin (Dox) is a medication used in the treatment of cancerous tumors and hematologic malignancies with potentially serious side effects, including the risk of cardiotoxicity. Flavonoids are plant metabolites with antioxidant properties and can be extracted from Camellia sinensis (CS). The aim of this study is to evaluate the possibl...
Paracetamol (PAR) is a drug widely used in human and veterinary medicine as an analgesic and antipyretic, often involved in cases of intoxication. The most common clinical signs result from damage to red blood cells and hepatocytes, and this intoxication is considered a model for the induction of acute liver failure. In the present study, the hepat...
The dogs with canine visceral leishmaniasis (CVL) play a key role in the transmission cycle of Leishmania infantum to humans in the urban environment. There is a consensus regarding the importance of developing a vaccine to control this disease. Despite many efforts to develop a protective vaccine against CVL, the ones currently available, CaniLeis...
Lead is a heavy metal and an important cause of acute or chronic toxicosis in humans, domestic, and wild animals. This report aims to describe a case of chronic lead poisoning in a jaguar (Panthera onca) kept under human care that was rescued from the wild environment. The animal was rescued in poor condition in 2004 and kept under human care at th...
The aim of the study was to investigate the nephrotoxicity of doxorubicin in cats with malignant neoplasms of the mammary gland. All selected cats did not present comorbidities such as nephropathies and/or cardiomyopathies, confirmed by physical and laboratory tests, underwent radical mastectomy associated with regional lymph node excision and were...
Solanum glaucophyllum Desf. Is a calcinogenic plant responsible for enzootic calcinosis that affects ruminants and causes alterations in bone and cartilaginous tissues, among others. It is believed that changes in cartilage tissue, with reduced bone growth, are due to hypercalcitoninism, caused by excess vitamin D. However, we hypothesized that S....
Visceral leishmaniasis (VL) is a fatal disease caused by the protozoa Leishmania infantum for which dogs are the main reservoirs. A vaccine against canine visceral leishmaniasis (CVL) could be an important tool in the control of human and CVL by reducing the infection pressure of L. infantum. Despite the CVL vaccine available on the market, the Bra...
Intravenous lipid emulsions (ILE) have been increasingly used to reverse a wide range of lipophilic drug intoxications. However, it is still unknown if these emulsions interfere with other lipophilic drugs routinely used while treating intoxicated patients, such as diazepam, one of the main antiepileptic drugs. Therefore, the objective of the prese...
Resumo Este estudo teve como objetivo avaliar a eficácia das células-tronco mesenquimais (CTMs), isoladas ou associadas à dapsona (DAP), no tratamento de feridas dermonecróticas causadas pelo veneno de Loxosceles laeta. Vinte e cinco coelhos machos foram distribuídos em cinco grupos. O controle negativo recebeu água ultrapura (C-), enquanto todos o...
This study aimed to evaluate the efficacy of mesenchymal stem cells (MSC), alone or associated with dapsone (DAP), in treating dermonecrotic wounds caused by Loxosceles laeta venom. Twenty-five male rabbits were distributed into five groups. Negative control received ultrapure water (C-), whilst all other groups were injected with 20 μg of L. laeta...
Niedenzuella (Tetrapterys) multiglandulosa, a vine plant found in Brazil, has been correlated to outbreaks of poisoning in cattle and buffaloes, generating economic losses related to the death due to heart failure, miscarriage, abortion, stillbirth, and neonatal mortality. The aim of this study was to examine the embryotoxic potential of the aqueou...
Resumo Niedenzuella (Tetrapterys) multiglandulosa, uma videira encontrada no Brasil, tem sido correlacionada a surtos de intoxicações em bovinos e búfalos, gerando perdas econômicas relacionadas à morte por insuficiência cardíaca, aborto, natimorto e mortalidade neonatal. O objetivo deste estudo foi examinar o potencial embriotóxico do extrato vege...
A mastite é considerada a doença de maior importância nos rebanhos leiteiros. Ocasiona grandes perdas econômicas aos produtores e diminuição da qualidade e do rendimento do leite para a indústria. Pouco se fala a respeito da formação das espécies reativas de oxigênio e nitrogênio na glândula mamária e os efeitos negativos destes compostos na qualid...
In the present study, we investigated the cardiotoxic potential of Micrurus frontalis venom. Twelve guinea pigs (Cavia porcellus) were distributed in two groups (n = 6), named control and envenomed. Control groups received 0.2 ml of PBS/BSA, while envenomed group received 0.2 ml of the same solution containing 450 µg/kg of M. frontalis venom. Both...
Cururu toad (Rhinella marina group) is widely distributed in Brazil. Lesser grison (Galitic cuja) is a South American mustelid. This is the first report of natural poisoning in a free-ranging lesser grison by Rhinella toad parotoid gland secretion (PGS). Five minutes after biting a toad, the lesser grison developed convulsion, dying within 1.5 h. M...
In the present study, we investigated the cardioactive glycosides oleandrin and ouabain, and compared them to digoxin in a model of cardiotoxicity induced by doxorubicin. Adult rats were distributed into four experimental groups. Each group was challenged with a single intraperitoneal application of doxorubicin at a dose of 12 mg/kg. Then, they wer...
Background: Scorpionism is a worldwide medical issue, especially relevant in the tropical and subtropical countries. Tityus serrulatus is the species responsible for most cases in Brazil. Antivenom administration to victims is the sole specific therapy obtained from donor animals. Most of these donors suffer with symptoms of the poisoning, debilita...
Combination therapy between paclitaxel (PTX) and doxorubicin (DXR) is applied as the first-line treatment of breast cancer. Co-administration of drugs at synergistic ratio for treatment is facilitated with the use of nanocarriers, such as liposomes. However, despite the high response rate of solid tumors to this combination, a synergism of cardioto...
Background
Canine atopic dermatitis (cAD) is a chronic disease characterised by hypersensitivity to environmental allergens. Oclacitinib maleate selectively inhibits pro‐inflammatory mediators associated with cAD. However, the impact of chronic oclacitinib use on immunocompetence requires further investigation.
Objectives
Herein, we examined the p...
Medical use of Cannabis (or hemp) began thousands of years ago. In the 20th century, mechanisms of action were demonstrated with the discovery of its active substances, the phytocannabinoids, and its pharmacological targets, the endocannabinoid system. This system is composed of receptors, endogenous substances, and enzymes, and it participates in...
Rhipicephalus microplus, popularly known as the cattle tick, is the most important tick of livestock as it is responsible for significant economic losses. The use of chemical acaricides is still the most widely used control method despite its known disadvantages. Vaccination would be a safe alternative for the control of R. microplus and holds adva...
Forty 1-2-y-old water buffaloes were simultaneously treated with trichlorfon and chlorpyrifos products in the recommended dose for cattle. After a week, 19 animals started presenting clinical signs characterized by apathy, diarrhea, aggressiveness, dehydration, and motor incoordination, followed by flaccid paralysis and permanent lateral recumbency...
The Horse Agribusiness Complex is an important activity in the Brazilian agricultural sector. Mangalarga Marchador (MM) is the most numerous breed of horses in Brazil and its temperament and gait characteristics (4-beat stepping gait) allow for the constant growth of the breed and the performance of various equestrian activities. The training manag...
Cardiac disease is of importance in captive chimpanzee (Pan troglodytes) health. Here we report an eosinophilic and necrotizing myocarditis in a 17-y-old chimpanzee with no previous history of cardiac disease that progressed to death within 48 h. Toxic and infectious causes were ruled out. The chimpanzee had eosinophilia at different occasions in p...
Micrurus surinamensis is a coral snake from the Elapidae family of wide distribution in Amazonia Forest. Its venom contains neurotoxins that induce muscular and respiratory paralysis; however, its cardiovascular action is not yet characterized. The aim of this study was to investigate the cardiotoxic effects caused by M. surinamensis poisoning in r...
A doxorrubicina (dox) é um medicamento antineoplásico que induz cardiotoxicidade por estresse oxidativo. Os flavonoides são antioxidantes extraídos de plantas como Camellia sinensis e Arrabidaea chica (Fridericia chica). Esta pesquisa objetivou avaliar efeitos protetores do extrato de A. chica (AC), comparado ao de C. sinensis (CS), frente ao estre...
Myocardial infarction (MI) is the irreversible injury of the myocardium caused by prolonged myocardial ischemia and is a major cause of heart failure and eventual death among ischemic patients. The present study assessed the protective potentials of andrographolide against isoproterenol-induced myocardial infarction in rats. Animals were randomly d...
Objective
To determine the effect and safety of IV lipid emulsion in rabbits with acute ivermectin toxicosis.
Design
Randomized controlled trial.
Setting
University research facility.
Animals
Twenty‐four healthy male adult New Zealand rabbits.
Interventions
Three groups of rabbits (IV, IV_RL, and IV_LE) received 80 mg/kg of ivermectin (8 mL/kg)...
Listeria monocytogenes is a cause of infectious food-borne disease in humans, characterized by neurological manifestations, abortion, and neonatal septicemia. It is intracellular bacterium, which limits the development of protective inactivated vacines. Adjuvants capable of stimulating cellular immune response are important tools for developing nov...
Ticks are considered the most important vectors in veterinary medicine with a profound impact on animal health worldwide, as well as being key vectors of diseases affecting household pets. The leading strategy applied to dog tick control is the continued use of acaricides. However, this approach is not sustainable due to surging tick resistance, gr...
In Brazil, snakes from the Bothrops genus are responsible for thousands of accidents, and their venoms are mainly composed of proteolytic enzymes. Although the antibothropic serum produced by the Brazilian Institutes is remarkably efficient, more studies are necessary, especially in veterinary medicine. The venom contain enzymes and non-enzymatic p...
Background: The glaucoma is a progressive optical neuropathy generally associated to the increase of the intraocular pressure (IOP). It is a disease of difficult therapeutic conduct and potential cause of blindness. The dorzolamide at 2% and the latanoprost at 0.005% are topical antiglaucoma drugs that cause significant reduction of the IOP. We dec...
The aim of this study was to evaluate the comparative effects of CGs on heart physiology. Twenty-eight Wistar rats were distributed into four groups (n = 7), control group received NaCl 0.9% every 24 h for 21 days; treated groups received respectively 50 μg/kg of digoxin (DIG), ouabain (OUA) and oleandrin (OLE) every 24 h for 21 days. Serial ECGs w...
In forensic toxicology, the detection of toxic chemicals from human bone marrow is often used in cases with an extended post mortem interval; however, in veterinary medicine, this practice is not used. Therefore, this study was performed to investigate the suitability of bone marrow for toxicological analysis in dogs and cats. Six animals with susp...
Continuous climate changes associated with the disorderly occupation of urban areas have exposed Latin American populations to the emergence and reemergence of arboviruses transmitted by Aedes aegypti. The magnitude of the financial and political problems these epidemics may bring to the future of developing countries is still ignored. Due to the l...
In the present study, we investigated the cardioprotective effects of coenzyme Q10 (Q10) against doxorubicin (DOXO) induced cardiomyopathy. Twenty adult rats were distributed in four experimental groups: group 1 received NaCl 0.9% at 1 ml/day for 14 days; group 2 received Q10 at 1 mg/kg/day for 14 days; group 3 received initial 7 days of treatment...
Background:
Metaldehyde is a toxic pesticide used mainly as a molluscicide, responsible for intoxication and deaths in both humans and animals. Accidental exposure to metaldehyde in dogs is considered rare, but severe. Data concerning clinical and veterinary forensic toxicology are largely incomplete, especially regarding case reports in dogs. The...
Background/Objectives
Vaccination is the most important tool for controlling brucellosis, but currently there is no vaccine available for canine brucellosis, which is a zoonotic disease of worldwide distribution caused by Brucella canis. This study aimed to evaluate protection and immune response induced by Brucella ovis ΔabcBA (BoΔabcBA) encapsula...
The Solanum glaucophyllum Desf. has been used to treat and prevent diseases in human and veterinary medicine. On the other hand, plant poisoning causes several bone diseases, among them osteoporosis, which is characterized by osteoblastic hypoplasia. Because the osteoblast is a cell derived from the differentiation of mesenchymal stem cells (MSCs)...
Long circulating pH-sensitive liposomes have been shown to effectively deliver doxorubicin (DOX) to tumors and reduce its toxic effects. Folic acid receptors are upregulated in a wide variety of solid, epithelial tumors, including breast cancer. In order to improve liposomal endocytosis and antitumor activity, folic acid has been added to nanoparti...
The hypothesis of this experiment is that mesenchymal stem cells (MSCs) are involved in the genesis of the bone metaplasia caused by Solanum glaucophyllum intoxication. We determined using liquid chromatography that 1 mL of plant extract contained 3.8 μl of 1,25(OH)2D3. The ability of 100 μL, 1 mL and 5 mL of extract/L, containing 1 nM (0.4 μg/L),...
Ferns of the genus Pteridium are known to be responsible for cases of poisoning in cattle. The commonly found species of Pteridium in Brazil are P. arachnoideum and P. caudatum. The toxic principle of these ferns is ptaquiloside, a norsesquiterpene glucoside, which is a known carcinogen. Ptaquiloside can be secreted in the milk of cows grazing on b...
Rats and mice are the most common species used in experimental cardiac electrophysiology studies. Electrocardiogram (ECG) recording shows paramount importance for monitoring arrhythmias and cardiac function in several disease models, including QT syndrome. However, the lack of standardized reference values and QT correction formula for different an...
The conservation of haylage (a pre-dried feed) can be challenging, since there is an increased risk of mould growth, which can contaminate this foodstuff with mycotoxins. However, when the hygienic quality is secured, haylage enhances grass palatability and provide enough supply of dry matter throughout the year. Due to the lack of information rega...
Background: In the Rio Grande do Norte state, Northeastern Brazil, several outbreaks of poisoning affecting horses, cattle and sheep have been attributed by a number farmers to the consumption of the leaves of Blutaparon portulacoides, a plant from family Amaranthaceae, known as “pirrixiu”, “bredo-de-praia” and “capotiraguá”. However, the spontaneo...
Mangalarga Marchador foals in Minas Gerais, Brazil, are usually weaned during the dry season, when there is a scarcity of forage. Although sorghum silage has been used to feed weanlings, the effect on their feeding behavior in comparison with grass hay has not been reported. Twelve Mangalarga Marchador weanlings were randomly assigned to two groups...
Monofluoroacetate (MFA) is considered one of the most toxic substances known. It is found naturally in plants, and causes sudden death syndrome in ruminants. Due to hyperacute evolution of poisoning and the absence of effective treatment, induction of resistance in animals might be the best tool to control MFA poisoning in ruminants. The objective...
RESUMO Este estudo objetiva reportar a ocorrência de apoptose in vivo induzida pelo veneno da serpente Bothrops alternatus em células musculares esqueléticas. Cinco coelhos machos, adultos, receberam 150μg/kg de veneno no músculo vasto lateral, enquanto outros cinco animais receberam 0,1% de BSA diluído em PBS no mesmo local. Após 12 horas, os anim...
Huntington's disease (HD) is a neurodegenerative genetic disorder. Although described as a brain pathology, there is evidence suggesting that defects in other systems can contribute to disease progression. In line with this, cardiovascular defects are a major cause of death in HD. To date, relatively little is known about the peripheral abnormaliti...
Cardiac glycosides (CGs) are secondary compounds found in plants and amphibians and are widely distributed in nature with potential cardiovascular action. Their mechanism is based on the blockage of the heart's sodium potassium ATPase, with a positive inotropic effect. Some of the most well-known CGs are digoxin, ouabain, oleandrin, and bufalin. Th...
This study evaluates whether intrathecal MVIIA injection after spinal cord injury (SCI) elicits neuroprotective effects. The test rats were randomly distributed into six groups— sham, placebo, MVIIA 2.5 μM, MVIIA 5 μM, MVIIA 10 μM, and MVIIA 20 μM—and were administered the treatment four hours after SCI. After the optimal MVIIA dose (MVIIA 10 μM) w...
Basso, Beattie, and Bresnahan locomotor rating scale was employed in this experiment [44].
(DOCX)
Percentage of MVIIA injection side effects after spinal cord injury in Wistar rats.
(DOCX)
MVIIA effect on cell death 48 h after spinal cord injury in Wistar rats.
Representative images of the ethidium homodimer-stained lateral funiculus of spine slices obtained from Wistar rats submitted to dorsal laminectomy (SHAM rats, negative control) or to spinal cord injury and subsequent injection, 4 h after trauma, of placebo (PBS, PLA rats) or...
MVIIA effect on cell death 48 h after spinal cord injury in Wistar rats.
Representative images of the ethidium homodimer-stained lateral funiculus of spine slices obtained from Wistar rats submitted to dorsal laminectomy (SHAM rats, negative control) or to spinal cord injury and subsequent injection of placebo (PBS, PLA rats) or MVIIA 10 μM one hou...
Twelve adult rabbits were distributed in three groups and received on the femoral biceps region, via intradermal injection (ID), 25µg of Bothrops alternatus venom dissolved in NaCl 0.9% and diluted in 0.25mL of phosphate buffered saline (PBS). Thirty minutes later, the group G1 received 0.25mL of phosphate buffered saline (PBS) ID while to G2 and G...
This work aimed to develop and validate a method to detect and quantify protodioscin in Brachiaria grasses using ultraperformance liquid chromatography (UPLC) coupled to high-resolution quadrupole time-of-flight mass spectrometry. Samples were extracted by acetonitrile–water 50:50 v/v mixture and ultrasonication. The mobile phase consisted of 5 mM...
Canine atopic dermatitis (CAD) is a chronic, pruritic, genetic, and inflammatory disease. Its pathogenesis is very complex and involves skin barrier defects and immune system dysfunction. This study aimed to investigate hematological, biochemical, clinical, and immunological parameters to contribute to the identification of biomarkers applied to CA...
Twelve adult rabbits were distributed in three groups and received on the femoral biceps region, via intradermal injection (ID), 25µg of Bothrops alternatus venom dissolved in NaCl 0.9% and diluted in 0.25mL of phosphate buffered saline (PBS). Thirty minutes later, the group G1 received 0.25mL of phosphate buffered saline (PBS) ID while to G2 and G...
The objective of this work was to evaluate the effects of equine infectious anemia (EIA) on the physical performance of equines from the Brazilian Pantanal region. A total of 16 males were evaluated, divided into two groups: 8 seronegative (G1) and 8 seropositive (G2) for EIA. Two graded exercise tests were carried out before (T1) and after (T2) 42...
RESUMO: Com o objetivo de estudar parâmetros indicativos de bem-estar, 30 equinos de corrida foram avaliados quanto ao temperamento, comportamento, parâmetros clínicos (condição geral, escoriações, escore corporal, cólicas no último ano, frequências cardíaca e respiratória) e níveis de cortisol plasmático (matutino, vespertino e ritmo circadiano)....
Young horses reach nearly 90% of their final height in the first year of life. However, to achieve their genetic potential, it is necessary to receive adequate nutrition during this period of rapid growth. The objective of this study was to evaluate the effect of supplementation of sorghum silage during a period of limited pasture forage availabili...
Nerium oleander is an ornamental cardiotoxic plant found in tropical and subtropical areas of the World. Its toxicity is related to the content of cardioactive glycosides, mainly oleandrin, found throughout the plant. The present study aimed to describe a new and improved method for oleandrin detection in tissue samples. The determination of oleand...
Cestrum axillare Vell. (formerly Cestrum laevigatum Schltd.), family Solanaceae, is the most important hepatotoxic plant in Brazil that causes acute poisoning. It occurs in the Southeast and Center-West regions and in coastal areas of the Northeast Brazil. Spontaneous poisoning was described in cattle, goats and sheep, with clinical signs evidenced...
The aim of this study was to evaluate the use of mesenchymal stem cells (MSC) in the treatment of myonecrosis induced by Bothrops alternatus venom in rats. Seventy-five male adult Wistar rats were divided into three experimental groups. G1 and G2 were injected in the gastrocnemius muscle with 120μg of B. alternatus venom, while G3 received 200μL of...
Please cite this article as: Luz, V.B., Gadelha, I.C.N., Cordeiro, L.A.V., Melo, Marí.M., Soto-Blanco, B., In vitro study of gossypol's ovarian toxicity to rodents and goats, Toxicon (2018), ABSTRACT 23 24 Gossypol interferes with reproduction, causing damage to sperm, disrupting the estrous 25 cycle and resulting in embryonic lethality. In females...
We studied the efficacy of mesenchymal stem cells (MSC), either alone or associated with dapsone (DAP) in the treatment of dermonecrotic wounds caused by Loxosceles laeta spider venom. Twenty-five male adult rabbits were distributed into five groups, of which four groups received an intradermal injection of 20 μg of L. laeta venom and only one rece...
In Brazil, at least 16 poisonous plant species can affect the central nervous system of livestock. Recently in the state of Piauí, Northeastern Brazil, Brunfelsia uniflora was reported as a cause of nervous signs in donkeys, cattle, and small ruminants. In order to assess the toxicity of B. uniflora extracts, 20 Swiss mice were distributed into fou...
In Brazil, at least 16 poisonous plant species can affect the central nervous system of livestock. Recently in the state of Piauí, Northeastern Brazil, Brunfelsia uniflora was reported as a cause of nervous signs in donkeys, cattle, and small ruminants. In order to assess the toxicity of B. uniflora extracts, 20 Swiss mice were distributed into fou...
Beef meat is an important food that can be contaminated by pesticides. This study aimed to optimize a multiresidue method for identification and quantification of pesticides in beef meat by liquid chromatography coupled to mass spectrometry detection (LC-MS). The extraction and clean-up procedures were adapted from the QuECHERS method. From the 188...
A correct and balanced nutrition has a great importance in the development of young horses. Weanlings should reach 90% of their final height at twelve months of age, and it is necessary that their rations allow them to reach their genetic potential during this critical growth period. The objective of this study was to compare the growth and develop...
Haemostasis is a physiological process that prevents excessive blood loss. In laboratory, the prothrombin time (PT) and the activated partial thromboplastin time (aPTT) are used to examine clotting systems. However, the influence of sex on PT and aPTT values is unknown. The present work aimed to determine the values for PT and aPTT in adult sheep a...
Ethnopharmacological relevance:
Nerium oleander L. (OLE) has been used medicinally and is reported to possess a wide range of pharmacological activities. OLE effects are caused by different cardiac glycosides (CG), primarily oleandrin, found within the plant. CG can potentially impair sodium-potassium ATPase (NKA) pump activity and cause positive...
The aim of this study was to carry out a physicochemical analysis of water, sediment and riparian vegetation in a fish farm located near the Ribeirão da Mata basin in Minas Gerais State (Brazil). The water samples were collected weekly at four points: (1) source, (2) system entry, (3) discharge point, (4) and point release. The monitored physicoche...
Marsdenia megalantha Goyder & Morillo, arbusto encontrado na região semi-árida do Brasil, é descrita como causa de intoxicações espontâneas em bovinos, caprinos, ovinos, suínos, equinos e asininos. Este estudo teve o objetivo de avaliar a possibilidade do princípio tóxico desta planta ser transferido pelo leite em quantidades suficientes para causa...
Tifton-85 grass (Cynodon spp) has been used in equine nutrition in the form of pre-dried (haylage) and hay, however, there are no conclusive studies about the influence of haylage on blood profile of this species. Therefore, the aim of this study was to evaluate the blood profile as health indicators of Quarter Horse mares were fed haylage and Tift...
The purpose of this study is to evaluate healthy conscious guinea pigs as a model for electrophysiology assessment and to describe normal electrocardiographic patterns in controlled laboratory environment, establishing the best QT formula for this method. Electrocardiographic recordings of fifty adult conscious guinea pigs were obtained using a com...
Gossypol, a phenolic compound produced by the pigment glands of cotton, is known to affect male reproduction. In females, exposure to gossypol has been associated with interference with the estrous cycle and embryo development. In laying hens fed cottonseed, gossypol was found to reduce egg production and weight and to cause discoloration of the eg...
Background:
Hadruroides lunatus is the most abundant scorpion species in the Peruvian central coast, where most of the accidents involving humans are registered. In spite of its prevalence, there are only very few studies on H. lunatus envenomation. The aim of the present study was to analyze the cardiorespiratory alterations caused by H. lunatus...
Specific anti-venom used for treatment of scorpion envenomation is normally obtained from horses after hyperimmunization with crude scorpion venom. However, immunized animals often get ill because of the toxic effects of the immunogens used. The main goal of this study was to evaluate the toxic and immunogenic activities of crude and detoxified Tit...
Cottonseed cake contains gossypol, a potentially toxic compound that, when consumed by sheep, can affect reproduction, the immune system, and the liver. Changes in hematologic and serum biochemical parameters were monitored for 63 days in 12 Santa Inês ewes, six of which received ration containing 400 g kg(-1) of cottonseed cake. Blood samples were...
Compounds isolated from Agaricus blazei Murill represent a group of promising natural immunomodulators for use in the treatment of neoplasms. We have evaluated the serum biochemical profile of healthy and Ehrlich tumor-bearing mice treated with different extracts of A. blazei. Total, supernatant, and polysaccharide extracts of A. blazei were obtain...
The aim of the study was to assess the average daily gain (ADG), the growth rate of linear measurements and cortical index changes of the third metacarpus (ICOR) of foals from 173 ± 8 to 363 ± 12 day of life. Sixteen Mangalarga Marchador weaned colts were divided by age and allotted randomly to one of four dietary treatments (n = 4): A - basal diet...